fix dockerfile for net9.0

Author: alecgorge

Dockerfile

@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:8.0
+FROM mcr.microsoft.com/dotnet/sdk:9.0
 
 WORKDIR /dotnetapp
 
@@ -10,8 +10,8 @@ COPY RelistenApi/ .
 
 RUN dotnet publish /p:Configuration=Release
 
-RUN test -f bin/net8.0/publish/RelistenApi.dll
+RUN test -f bin/net9.0/publish/RelistenApi.dll
 
 EXPOSE 3823
 
-ENTRYPOINT ["dotnet", "bin/net8.0/publish/RelistenApi.dll"]
+ENTRYPOINT ["dotnet", "bin/net9.0/publish/RelistenApi.dll"]